Solved: The flash unit on a camera operates by storing charge on a capacitor and

Chapter 3, Problem 3.4.85

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The flash unit on a camera operates by storing charge on a capacitor and releasing it suddenly when the flash is set off. The following data describe the charge remaining on the capacitor (measured in microcoulombs, +C) at time (measured in seconds). (a) Use a graphing calculator or computer to find an exponentialmodel for the charge.(b) The derivative represents the electric current (measuredin microamperes, +A) flowing from the capacitor tothe flash bulb. Use part (a) to estimate the current whens. Compare with the result of Example 2 inSection 2.1.t ! 0.04Q$"t#

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